Lath.



arn'r ernten,N

GEORGE r. cRUiviBAUeHQoF sr. Leurs, iuissoUiti, Assreivoitor ONE-HALF To EDWIN W. GROVE, 0F"` ST.

LOUIS, MISSOURI. y

` LATH iyiovleoe;

Specification. of Letters Patent. .Patenml Aug; 18, 1914,

Application ined Api-n 2s, 1913. serial No; 764,219. e

To all whom t'tma'i/ concer/nf y y y `Be it `known that I, `Guiones `P. `CRUM- nanci-i, a citizen ofthe United States,` re-` siding at St. Louis, in the State of "Missouri, have invented new and useful Improvements in Laths7 of which the following is aspecification. g.

This invention relates toa cellularlwall covering or lath for building purposes embodying a num'berof air cells with exteriorly exposed openings to receive a plaster covering, whether of ainishing `character or a primal covering such asa concrete mixture whiclrmay afterward `receive "the `finishing covering or coating.` y 'lhe primary object of the invention is to provide a novel form of key base for walls to` receive and positively hold `a plaster covering `of anydesired nature and thereby `replace the ordinary lath and` plaster structure of walls by a. basic organization that will not bend or give sidewiseunder weight or strain. i y 'g The invention consists essentially of a series of successive corrugations reinforced by layers or laminae in superposed relation,` the layers or laminas being individuallyfarranged against 'and secured to either one or both faces ofthe corruga'tions.

Many constructions could be `devised to obtain the organization of theycorrugations and layers desired in accordance with the features of the invention, and speciically the components ofthe improved lath, wall covering or key base may consist of` alternat-j rugationsand laminae,y but whatever the nature of the components may be, they are all treated with a suitable strengthening or water-proofing varnish or coating, or rendered fire-proof by applyinga suitable fire-proofing substance thereto.

The most important principle involved in *thev construction of the improved lath, `wall to each other to provide a strain and weight (resisting structure that will not warp or shrink, and which has its strength increased by applying a plastic coveringthereto and y forcing the plastic material into the exposed openings. In the drawings: Figure lfisfa perspective view of a portion of a wall struciture showing the same partially covered by fthe improved lath, wall covering or key base. F 2 is an enlarged detail section showing a slightmodification of the form` of lath or key base shown by Jilin'. 1Q Fig. 3 is an en- 65 larged detail"` section .showing a further modification in the structure ofthe lath. Fig. l is an enlarged` detail section particularly illustrating a modification inthe forni of the corrugations. f

As shown by Fig. 1, the improved` lath, wall coveringor` key base is adapted `to he applied to the ordinary wall or partition structure embodying upright joists 5, or it may be applied to ceilings in asimilar man- .ner7 and inthe particular organization of tho la th, wall coveringor` key base as shown byFiO'. l an intermediate corrugated strip G of paper or other suitable material has flat ysheets or strips 7 and 8 applied toopposite 80 sides or faces thereof, and after these components have been thus assembled a number ofthe complete sections embodying the corrugated strips and flat strips are arranged in super-posed relation and secured to each other by a suitable cement, glue or other material. The improved lath, covering `or key base may `be `formed kby assembling large y sheets embodying corrugated and flat laminac in a stack and securing the same and then" cutting through thestack by any suitable` ineansto formthe individual laths of suitable thickness. It will be understood that the 4corrugated.strips 6, as shown by Fig". 1, `will i be lirmly secured by any suitable cement or cementitious material to theiiat strips7 and 8 and the `contiguousilat strips will be se# cured to each other bya similar cement and the lath as an entiretyinay `thenbe dipped rin a bath "orcoated with a suitable varnish "or other wa.ter-piooiing material, and if dcj istance or liquid of any preferred nature. 10.5 t

covering or key base is the `disposition of the* y p x ln applying the laths to the studding 5 components in edgewisel relation relatively G. P. CRUMBAUGH.

vLATE.

APILIOATION T1msn 111211.28. 1913.

Patented Aug. 18, 1914,

@ve/afar egle Ezun Zaz- Y ff f other and serving to reinforce and 10 strengthen the luth as awhole.

In testimony whereof I have hereunto set my .hand in presence of two subscribing Witnesses.

GEORGE P. CRUMBAUGH. Witnesses:

H. H. MCCULLY, F. N. HAMMING.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

